Lifter and control method thereof

A control method and a technology of a lifting device, which are applied in hoisting devices, spring mechanisms, etc., can solve problems such as difficult speed control, dangerous production activities, and loss of control of hoisted objects, so as to achieve easy operation, avoid personnel injuries, and save energy. human effect

Active Publication Date: 2017-01-25
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, a commonly used lifting device requires two to three people to take off and land with the help of traditional ropes. The speed is not easy to control. Once the rope is released, it is very easy to cause the hanging objects to lose control, which not only causes equipment damage, but also brings danger to production activities.

Method used

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  • Lifter and control method thereof
  • Lifter and control method thereof

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Experimental program
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Embodiment Construction

[0024] The jack of the present invention includes a traction part and a lifting frame, the lifting frame is provided with a pulley mechanism, and the rope 8 (usually a steel cable) drawn from the traction part is connected with the object to be lifted through the pulley on the suspension frame, see figure 1 It can be seen that the traction part is fixed on the base 1, including the driving shaft 3, the driven shaft 5 and the rope roller 7 fixed on the driven shaft 5 for winding the rope 8, wherein the two ends of the driving shaft 3 and the driven shaft 5 pass through The support bearing 2 is fixed on the base 1, the driving shaft 3 is fixed with the power gear 4, the driven shaft 5 is fixed with the driven gear 6, the power gear 4 and the driven gear 6 are meshed, and the driving shaft 3 has an artificial handle at one end The interface is connected to the interface of the motor output shaft, which can be driven by manpower or lifted by the motor. The base 1 and the lifting f...

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Abstract

The invention discloses a ground jack which comprises a traction part and a hoisting frame. The traction part is fixed on a base. A rope drawn from the traction part is connected with a hoisted object through a pulley on the hoisting frame. The traction part comprises a driving shaft, a driven shaft and a rope roller fixed on the driven shaft and is used for winding the rope. The driving shaft and the driven shaft are fixed on the base through supporting bearings and are respectively provided with a driving gear and a driven gear in a fixing mode. The driving gear is meshed with the driven gear. A slip frequency brake mechanism is arranged on the driven shaft. The ground jack saves manpower and is convenient to operate and high in reliability, has a locking function on extreme conditions, can effectively prevent hoisted equipment from being damaged, and can also prevent persons from being damaged.

Description

technical field [0001] The invention relates to a lifting device. Background technique [0002] Jacks are common industrial equipment used to lift heavy objects. Currently, a commonly used lifting device requires two to three people to take off and land with the help of traditional ropes. The speed is not easy to control. Once the ropes are released, it is very easy to cause the hanging objects to lose control, which not only causes equipment damage, but also brings danger to production activities. Contents of the invention [0003] The technical problem to be solved by the invention is to realize a safe and reliable jack. [0004] In order to achieve the above object, the technical solution adopted by the present invention is a jack, including a traction part and a lifting frame, the traction part is fixed on the base, and the rope drawn from the traction part is connected to the object to be lifted through the pulley on the hanger , the traction part includes a driving...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B66D5/14B66D5/28B66D1/02B66D1/54
Inventor唐龙江凌晓斌黄小庆王瑞文袁保平程前朱兵王文林
OwnerSTATE GRID CORP OF CHINA